US20130092067A1 - Fly Sewing Machine - Google Patents
Fly Sewing Machine Download PDFInfo
- Publication number
- US20130092067A1 US20130092067A1 US13/704,278 US201013704278A US2013092067A1 US 20130092067 A1 US20130092067 A1 US 20130092067A1 US 201013704278 A US201013704278 A US 201013704278A US 2013092067 A1 US2013092067 A1 US 2013092067A1
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- United States
- Prior art keywords
- fly
- flies
- sewing machine
- slide fastener
- unit
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Classifications
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B27/00—Work-feeding means
- D05B27/10—Work-feeding means with rotary circular feed members
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B35/00—Work-feeding or -handling elements not otherwise provided for
- D05B35/06—Work-feeding or -handling elements not otherwise provided for for attaching bands, ribbons, strips, or tapes or for binding
- D05B35/064—Work-feeding or -handling elements not otherwise provided for for attaching bands, ribbons, strips, or tapes or for binding for attaching slide fasteners
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2501/00—Wearing apparel
- D10B2501/06—Details of garments
Definitions
- the present invention relates to a fly sewing machine which continuously stitches a plurality of flies each made of a piece of cloth such as a fly front of trousers onto an elongated slide fastener chain.
- a fly sewing machine includes a fly supply unit which supplies flies from the upstream side along a fly transfer passage which is provided on a stand, a fly feed unit which sequentially transfers the flies supplied by the fly supply unit, a transfer speed-adjusting part which sends the flies transferred by the fly transfer unit to a sewing machine part in the downstream side at required timing, and a chain feed unit provided between the transfer speed-adjusting part, the chain feed unit sending a continuous slide fastener chain to the sewing machine part in synchronization with the sewing speed of the sewing machine part (e.g., refer to Patent Document 1).
- Patent Document 1 Japanese Patent Application Publication No. 2006-158705A
- the present invention has been made keeping in mind the above problems occurring in the related art, and an object of the present invention is to provide a fly sewing machine which ensures that flies are stably fed and makes it possible to properly attach the flies to a slide fastener chain, even if the flies are short.
- the object of the present invention is achieved by the following configurations.
- a fly sewing machine configured to continuously stitch a plurality of flies each made of a piece of cloth to an elongated slide fastener chain, the fly sewing machine that includes a fly supply unit configured to supply the flies to a fly transfer passage; a fly transfer unit disposed downstream of the fly supply unit and configured to transfer and send the flies supplied by the fly supply unit to a downstream side thereof; a chain feed unit disposed downstream of the fly transfer unit and configured to feed the slide fastener chain onto the flies sent by the fly transfer unit; an auxiliary conveyance unit disposed downstream of the chain feed unit and configured to press the flies and the slide fastener chain which are overlapped by the chain feed unit from above or below and to send the flies and the slide fastener chain to a downstream side thereof; and a sewing machine part disposed downstream of the auxiliary conveyance unit and configured to stitch the flies to the slide fastener chain.
- the auxiliary conveyance unit includes a support shaft provided perpendicular to the fly transfer passage and at least one roller rotatably supported by the support shaft, and the at least one needle section is a plurality of the needle sections which are provided on an outer circumferential surface of the at least one roller.
- the at least one roller is a pair of rollers rotatably provided on both ends of the support shaft and the auxiliary conveyance unit further includes the pair of the rollers and a rotary shaft provided along the fly transfer passage, the rotary shaft pivotably supporting the support shaft.
- a power of the auxiliary conveyance unit is a sending force of the sewing machine part for sending the flies and the slide fastener chain which are overlapped to the downstream side thereof while stitching the flies and the slide fastener chain together.
- the fly sewing machine includes a fly supply unit configured to supply the flies to a fly transfer passage; a fly transfer unit disposed downstream of the fly supply unit and configured to transfer and send the flies supplied by the fly supply unit to a downstream side thereof; a chain feed unit disposed downstream of the fly transfer unit and configured to feed the slide fastener chain onto the flies sent by the fly transfer unit; an auxiliary conveyance unit disposed downstream of the chain feed unit and configured to press the flies and the slide fastener chain which are overlapped by the chain feed unit from above or below and to send the flies and the slide fastener chain to a downstream side thereof; and a sewing machine part disposed downstream of the auxiliary conveyance unit and configured to stitch the flies to the slide fastener chain.
- FIG. 1 is a partially-cutaway side view depicting one embodiment of a fly sewing machine according to the invention
- FIG. 3 is an enlarged side view depicting the operation of adjusting the interval between the fourth drive roller and the fourth support roller between the transfer speed-adjusting part;
- FIG. 4 is an enlarged side view depicting the state before the following fly enters the interval between the fourth drive roller and the fourth support roller;
- FIG. 6 is an enlarged side view depicting the state in which a following fly enters between the slide fastener chain and the support table;
- FIG. 7 is an enlarged side view of the surroundings of the auxiliary conveyance unit shown in FIG. 1 ;
- FIG. 8 is a cross-sectional view taken in the direction of line B-B of the auxiliary conveyance unit shown in FIG. 7 ;
- FIG. 9 is a partially cutaway side view depicting a first modified view of one embodiment of the fly sewing machine according to the invention.
- FIG. 10 is a partially cutaway side view depicting a second modified view of one embodiment of the fly sewing machine according to the invention.
- FIG. 11 is an enlarged side view depicting a first modified view of the auxiliary conveyance unit.
- the fly sewing machine of this embodiment includes a stand 2 having a fly transfer passage 3 provided on a top surface thereof such that flies F are transferred along the fly transfer passage 3 ; a fly supply unit 10 which supplies the flies F to the fly transfer passage 3 of the stand 2 ; a fly transfer unit 20 disposed downstream of the fly supply unit 10 , the fly transfer unit 20 which transfers and sends the flies F supplied by the fly supply unit 10 to the downstream side thereof; a chain feed unit 50 disposed downstream of the fly transfer unit 20 , the chain feed unit 50 which feeds a slide fastener chain C onto the flies F sent by the fly transfer unit 20 ; an auxiliary conveyance unit 60 disposed downstream of the chain feed unit 50 , the auxiliary conveyance unit 60 which presses the flies F and the slide fastener chain C which are overlapped in the chain feed unit 50 from above or below and sends the flies F and the slide fastener chain C to the downstream side thereof; and a sewing machine part 70 disposed downstream
- the fly supply unit 10 is formed of the upstream end of the fly transfer passage 3 which extends upstream from the fly transfer unit 20 .
- new flies F are adapted to be manually loaded in sequence onto the fly supply unit 10 .
- the fly transfer unit 20 includes first to third drive rollers 21 to 23 which are disposed at predetermined intervals along the fly transfer passage 3 , first to third support rollers 24 to 26 which are disposed above the first to third drive rollers 21 to 23 such that a respective support roller faces a respective drive roller, first to third springs 27 to 29 which elastically urge the first to third support rollers 24 to 26 toward the first to third drive rollers 21 to 23 , upper and lower support frames 30 and 31 which support the first to third support rollers 24 to 26 toward the first to third drive rollers 21 to 23 such that the support, rollers 24 to 26 can freely reciprocate, and a transfer speed-adjusting part 40 which sends the flies F transferred by the first to third drive rollers 21 to 23 to the downstream side at required timing.
- the first to third drive rollers 21 to 23 are rotatably supported on the stand 2 in the state in which the transfer surfaces thereof are slightly exposed out of the fly transfer passage 3 from above, and are driven by a power transmission belt 33 which is driven by a single drive motor 32 so that the drive rollers 21 to 23 rotate at the same speed.
- the first to third springs 27 to 29 are compressive springs, and spring force thereof are set to a weak range, for example, from 0.05 kgf to 0.5 kgf.
- the transfer speed-adjusting part 40 includes a fourth drive roller 41 which is rotatably supported on the stand 2 , a fourth support roller 42 which is disposed above the fourth drive roller 41 and is rotatably supported on the upper and lower support frames 30 and 31 , fourth springs 43 which elastically urge the fourth support roller 42 toward the fourth drive roller 41 , and a roller interval-adjusting section 44 which adjusts the interval between the fourth drive roller 41 and the fourth support roller 42 by changing a descent limit position of the fourth roller 42 .
- the driving of the fourth roller 41 is interlocked with the driving of the chain feed rollers 51 and 52 of the chain feed unit 50 , i.e. the sewing operation of the sewing machine part 70 .
- the speed of rotation of the fourth drive roller 41 is set to be faster than the sewing speed in the sewing machine part 70 .
- the speed of rotation of the fourth drive roller 41 is set to be, for example, 10 to 15% faster than the sewing speed.
- the speed of rotation of the first to third drive rollers 21 to 23 is set to be faster than the speed of rotation of the fourth drive roller 41 .
- the outer circumference of the first to third rollers 21 to 23 is knurled, and the outer circumference of the first to third support rollers 24 to 26 is formed as a flat surface.
- the outer circumference of the fourth drive roller 41 and the fourth support roller 42 is knurled.
- the diameter of the fourth support roller 42 is set to be smaller than the diameter of the fourth drive roller 41 .
- the diameter of the fourth drive roller 41 is set 30 mm, and the diameter of the fourth support roller 42 is set 20 mm.
- the diameter of the fourth support roller 42 is set 2 ⁇ 3 of the diameter of the fourth drive roller 41 .
- the fourth springs 43 are compressive springs, and for example, the spring force thereof is set to the range from 2 kgf to 4 kgf, which is approximately 8 to 40 times the spring force of the first to third springs 27 to 29 .
- the roller interval-adjusting section 44 includes a support shaft 45 which rotatably supports the fourth support roller 42 , a shaft support member 46 which supports left and right shaft ends of the support shaft 45 so as not to rotate and can slide up and down between the left and right upper support frames 30 , and an adjustment screw 47 having a dial which is screwed into a screw-hole 46 a which is formed in the central portion of the shaft support member 46 so as to penetrate in the vertical direction when seen from the plane of the shaft support member 46 .
- the respective fourth springs 43 are mounted between the left and right shaft ends of the support shaft 45 which is fixedly disposed in the left, and right upper support frames 30 and the shaft support member 46 .
- Adjusting the adjustment screw 47 having the dial in the screwing direction decreases the interval between the fourth drive roller 41 and the fourth support roller 42 (see the wavy line in FIG. 3 ).
- Turning the adjustment screw 47 having the dial in the direction opposite to the screwing direction increases the interval between the fourth drive roller 41 and the fourth support roller 42 (see the solid line in FIG. 3 ).
- the sewing machine part 70 has a support table 71 on the upper surface of which the fly transfer passage 3 along which the flies F are transferred is provided, a pressing section 72 , a pair of sewing needles 73 which stitches the flies F to the slide fastener chain C, and a transfer member which is not shown.
- the chain feed unit 50 has a chain feed roller part 51 which draws the slide fastener chain C from a chain reservoir disposed above the sewing machine part 70 , sends the chain downwards, is driven by a pair of front and rear independent power transmission motors which are not shown, and is composed of a drive roller 52 and a follower roller 53 .
- the chain feed unit 50 also includes a chain guide roller 54 disposed below the chain feed roller part 51 .
- the slide fastener chain C which is sent downwards by the chain feed roller part 51 is redirected by the chain guide roller 54 , and is fed onto flies F sent by the transfer speed-adjusting part 40 .
- a photoelectric detector 80 is provided below the fly transfer passage 3 between the third drive roller 23 and the fourth drive roller 41 .
- the photoelectric detector 80 is configured such that the sewing machine part 70 and the fourth drive roller 41 start to operate when light is blocked by the flies F which pass through the detecting area of the photoelectric detector 80 but the sewing machine part 70 and the fourth drive roller 41 stop operating when an interval is formed between a preceding fly F and a following fly F.
- the first to third drive rollers 21 to 23 continue operating even when the transfer speed-adjusting part 40 is stopped.
- the operation of sewing and transferring the preceding fly F 1 stops. While the operation of sewing and transferring the preceding fly F 1 is stopped, the following fly F 2 which is continuously transferred. When the leading end of the following fly F 2 passes by and covers the photoelectric detector 80 from light, the operation of sewing and transferring the preceding fly F is resumed.
- the following fly F 2 since the speed of transferring the following fly F 2 is faster than the speed of transferring the preceding fly F 1 , the following fly F 2 catches up the preceding fly F 1 while the preceding fly F 1 passes through transfer speed-adjusting part 40 . In this state, the leading end of the following fly F 2 is in contact with the rear end of the preceding fly F 1 . In this contact state, the leading end of the following fly F 2 tends to climb over the rear end of the preceding fly F 1 because the speed of transferring the following fly F 2 surpasses the speed of transferring the preceding fly F 1 .
- the spring force of the first to third springs 27 to 29 which urge the first to third support rollers 24 to 26 of the fly transfer unit 20 is small and the outer circumference of the first to third support rollers 24 to 26 is flat, the following fly F 2 slips between the first to third drive rollers 21 to 23 and the first to third support rollers 24 to 26 and thus does not climb over the preceding fly F 1 .
- the following fly F 2 slightly climbed over the preceding fly F 1 , the following fly F 2 collides against the outer circumference of the fourth support roller 42 of the transfer speed-adjusting part 40 , thereby failing to move forward further. This consequently ensures that the preceding fly F 1 passes first in the transfer speed-adjusting part 40 .
- the preceding fly F 1 is actively transferred in the transfer speed-adjusting part 40 at a higher speed than the sewing speed by the sewing machine part 70 .
- an interval d 2 is formed between the preceding fly F 1 and the following fly F 2 .
- this interval d 2 depends on the cloth thickness and ductility of the flies F and the size of the interval d 1 between the fourth drive roller 41 and the fourth support roller 42 , but is not uniformly determined.
- the flies F which pass through the fourth drive roller 41 and the fourth support roller 42 of the transfer speed-adjusting part 40 are reliably transferred, since the outer circumference of the fourth drive roller 41 and the fourth support roller 42 is knurled, and the spring force of the fourth spring 43 is set to be greater than that of the first to third springs 27 to 29 .
- the transfer speed-adjusting part. 40 is transferred in the state in which the following fly F 2 is in contact with the preceding fly F 1 , the speed of transferring the transfer speed-adjusting part 40 is faster than the sewing speed, and holding force between the fourth drive roller 41 and the fourth support roller 42 in the transfer speed-adjusting part 40 is extremely great. Consequently, there is possibility that the flies F would be sent to the sewing machine part 70 in the state in which the leading end of the following fly F 2 is placed on the rear end of the preceding fly F 1 .
- the interval d 2 between the preceding fly F 1 and the following fly F 2 is not uniform owing to the preferences of sewing manufacturers. In an example, some manufacturers prefer the state in which the preceding fly F 1 and the following fly F 2 are in contact, whereas other manufacturers prefer the state in which a certain interval is set between the preceding fly F 1 and the following fly F 2 . Therefore, there are strong desires at sewing sites for the ease of the operation of adjusting the interval. In the present invention, it is possible to simply adjust the interval, between the fourth, drive roller 41 and the fourth support roller 42 by simply rotating the adjustment screw 47 having a dial of the transfer speed-adjusting part 40 as described above.
- the following fly F 2 when the following fly F 2 enters the interval between the fourth drive roller 41 and the fourth support roller 42 , the following fly F 2 catches up the preceding fly F 1 which is being sewn since the driving speed of the fourth drive roller 41 surpasses the driving speed of the sewing machine part 70 . Consequently, as shown in FIG. 6 , the following fly F 2 is introduced between the slide fastener chain C, the transfer of which is guided by the chain guide roller 54 , and the support table 71 .
- the auxiliary conveyance unit 60 includes a support section 61 , a base member 62 , a support shaft 63 , a rotary shaft 64 and a pair of rollers 65 .
- the support section 61 is disposed on the support table 71 .
- the base member 62 is attached to the support section 61 , and is disposed above the flies F and the slide fastener chain C, which are overlapped each other in the chain feed unit 50 , with a predetermined interval.
- the support shaft 63 is fitted into a recess 62 a which is formed in the width direction of the base member 62 .
- the rotary shaft 64 extends through a longitudinal central section of the support shaft 63 , which is disposed in the recess 62 a, along the fly transfer passage 3 , and pivotably supports the support shaft 63 .
- the pair of rollers 65 is rotatably supported on opposite ends of the support shafts 63 . Consequently, the support shaft 63 is provided perpendicular to the fly transfer passage 3 , and the rotary shaft 64 is provided along the fly transfer passage 3 .
- the support shaft 63 is supported such, that the support shaft 63 can pivot about the rotary shaft 64 .
- the slide fastener chain C includes a pair of left and right fastener tapes C 1 and C 2 and a plurality of fastener elements C 3 and C 4 which are attached to the fastener tapes C 1 and C 2 along opposing tape side edges of the fastener tapes C 1 and C 2 .
- the pair of rollers 65 is disposed such that a respective roller 65 presses, from above, a respective one of the pair of left and right fastener tapes C 1 and C 2 of the slide fastener chain C that are overlapped on the flies F in the chain feed unit 50 .
- a plurality of needle sections 66 (12 needle sections in this embodiment) which penetrates through the flies F and the fastener tapes C 1 and C 2 of the slide fastener chain C is formed on the respective outer circumference of the rollers 65 .
- the needle sections 66 are disposed on the outer circumference of the roller 65 , at substantially regular intervals in the circumferential direction, and radially extend outward.
- both the pair of left and right fastener tapes C 1 and C 2 are pressed by the pair of rollers 65 in this embodiment, this is not intended to be limiting. Rather, it is possible to provide only one roller 65 such that the roller presses only one of the pair of left and right fastener tapes C 1 and C 2 .
- the base member 62 has an element-receiving recess 62 b in the undersurface thereof.
- the element-receiving recess 62 b receives the engaged fastener elements C 3 and C 4 of the pair of left and right fastener tapes C 1 and C 2 , and is formed along the fly transfer passage 3 .
- the support table 71 has slits 71 a and 71 a through which the needle sections 66 and 66 of the pair of rollers 65 extend.
- the pair of rollers 65 of the auxiliary conveyance unit 60 rotates as the flies F and the slide fastener chain C to which the needle sections 66 thereof are fitted are sewn by the sewing machine part 70 and are then sent downstream. That is, a power of the pair of rollers 65 is a sending force of the sewing machine part 70 for sending the flies F and the slide fastener chain C which are overlapped to the downstream side thereof while stitching the flies F and the slide fastener chain C together. Owing to this, the pair of rollers 65 rotates in synchronization with the sewing speed of the sewing machine part 70 .
- the pair of rollers 65 rotates in the state in which the needle sections 66 are fitted into the flies F and the slide fastener chain C, the flies F and the slide fastener chain C are sent to the sewing machine part 70 via the rotation.
- the needle sections 66 are adapted to be sequentially released after being fitted into the flies F and the slide fastener chain C by the rotation of the rollers 65 .
- the fly sewing machine 1 of this embodiment includes the fly supply unit 10 which supplies the flies F to the fly transfer passage 3 of the stand 2 , the fly transfer unit 20 which transfers and sends the flies F supplied by the fly supply unit 10 to the downstream side thereof the chain feed unit 50 which feeds a slide fastener chain C onto the flies F sent by the fly transfer unit 20 , the auxiliary conveyance unit 60 which presses the flies F and the slide fastener chain C which are overlapped in the chain feed unit 50 from above or below and sends the flies F and the slide fastener chain C to the downstream side thereof, and the sewing machine part 70 which stitches the flies F to the slide fastener chain C.
- the length of the flies F is shorter than the distance between the position at which the fly transfer unit 20 sends the flies F and the position of the pressing section 72 of the sewing machine part 70 , it is possible to stably send the flies F, thereby reliably stitching the flies F to the slide fastener chain C.
- the plurality of needle sections 66 which extend through the flies F and the slide fastener chain C is formed in the outer circumference of the pair of rollers 65 . Accordingly, it is possible to reliably send the flies F and the slide fastener chain C to the sewing machine part 70 in the downstream side so that the positions thereof are not misaligned.
- the support shaft 63 which rotatably supports the pair of rollers 65 is pivotably supported by the rotary shaft 64 . Even though the surface of the flies F and the slide fastener chain C which are sent to the pair of rollers 65 is uneven, the uneven surface is absorbed by pivoting of the pair of rollers 65 . Accordingly, it is possible to reliably send the flies F and the slide fastener chain C to the sewing machine part 70 in the downstream side.
- the power of the pair of rollers 65 of the auxiliary conveyance unit 60 is the sending force of the sewing machine part 70 which sends the flies F and the slide fastener chain C which are overlapped each other to the downstream side while stitching the flies F and the slide fastener chain C together. Accordingly, it is not required to separately provide a power source of the pair of rollers 65 , thereby making it is possible to reduce the manufacturing cost of the fly sewing machine 1 .
- the transfer speed-adjusting part 40 may be omitted.
- the fly transfer unit 20 includes first to fourth drive rollers 21 to 23 and 91 which are disposed along the fly transfer passage 3 at predetermined intervals, first to fourth support rollers 24 to 26 and 92 which are disposed above the fourth drive rollers 21 to 23 and 91 such that a respective support roller faces a respective drive roller, first to fourth springs 27 to 29 and 93 each of which elastically urges a respective one of the first to fourth support rollers 24 to 26 and 92 toward a respective one of the drive rollers 21 to 23 and 91 , and upper and lower support frames 30 and 31 which support the first to fourth support rollers 24 to 26 and 92 toward the first to fourth drive rollers 21 to 23 and 91 such that the drive rollers can freely reciprocate.
- the first to fourth drive rollers 21 to 23 and 91 are driven by the power transmission belt 33 which is driven by the single drive motor 32 so that the rollers 21 to 23
- the fly transfer unit 20 may be substituted by a fly transfer unit 100 which transfers flies F by blowing air.
- the fly transfer unit 100 includes an upper air-blowing section 101 , a lower air-blowing section 102 which blows air onto the undersurface of the flies F, and a roller device 103 which sends the flies F transferred by the air-blowing sections 101 and 102 to the downstream side.
- the upper air-blowing section 101 includes a support frame 104 which is disposed above the flies F with a predetermined interval, three blow-holes 105 which are formed in the support frame 104 with predetermined intervals in the direction in which the flies are transferred, and air feed nozzles 106 each of which is connected to a respective one of the three blow holes 105 .
- the blow holes 105 are inclined downward toward the downstream direction.
- the lower air-blowing section 102 has three blow holes 107 which are formed in the stand 2 with predetermined intervals in the direction in which the flies are transferred and air feed nozzles 108 each of which is connected to a respective one of the three blow holes 107 .
- the blow holes 107 are inclined upward toward the downstream direction.
- the roller device 103 includes a drive roller 103 a which is driven by a power transmission motor which is not shown and a follower roller 103 b.
- the fly transfer unit 100 which is configured as above, the flies F are caused to slightly float on air that is blown through the blow holes 105 and blow holes 107 . In this state, the flies F are transferred to the roller device 103 , and are then sent downstream by the roller device 103 .
- the needle sections 66 of the roller 65 penetrate through both the flies F and the slide fastener chain C in the above-described configuration.
- the length of the needle sections 66 may be shortened such that the needle sections penetrate through only the slide fastener chain C but merely press the flies F.
- the roller 65 of the above-described embodiment may be substituted by a pressing member 67 which has a rectangular motion trace.
- the pressing member 67 is a rectangular body, and has at least one needle section 68 (two needle sections in this modified embodiment) on the undersurface thereof.
- the needle sections 68 penetrate through the slide fastener chain C and penetrate through or press the flies F.
- the rectangular motion of the pressing member 67 uses a pneumatic or hydraulic cylinder.
- the roller 65 may be disposed below the fly transfer passage 3 such that the needle sections 65 penetrate through the flies F and press the fastener chain C or penetrate through both the flies F and the fastener chain C.
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Abstract
Description
- The present invention relates to a fly sewing machine which continuously stitches a plurality of flies each made of a piece of cloth such as a fly front of trousers onto an elongated slide fastener chain.
- As is known in the related art, a fly sewing machine includes a fly supply unit which supplies flies from the upstream side along a fly transfer passage which is provided on a stand, a fly feed unit which sequentially transfers the flies supplied by the fly supply unit, a transfer speed-adjusting part which sends the flies transferred by the fly transfer unit to a sewing machine part in the downstream side at required timing, and a chain feed unit provided between the transfer speed-adjusting part, the chain feed unit sending a continuous slide fastener chain to the sewing machine part in synchronization with the sewing speed of the sewing machine part (e.g., refer to Patent Document 1).
- Patent Document 1: Japanese Patent Application Publication No. 2006-158705A
- However, in the fly sewing machine described in foregoing Patent Document 1, when the length of a fly is shorter than the distance between the position at which the transfer speed-adjusting part sends flies and the position of a pressing member of the sewing machine part (in the case of the flies used in trousers for children), the flies are sent downstream in that section, owing to extrusion force of a next fly which is sent by the transfer speed-adjusting part and frictional force with the slide fastener chain fed by the chain feed unit. Consequently, the sending of the flies tends to be instable, so that the flies are not normally stitched to the slide fastener chain.
- The present invention has been made keeping in mind the above problems occurring in the related art, and an object of the present invention is to provide a fly sewing machine which ensures that flies are stably fed and makes it possible to properly attach the flies to a slide fastener chain, even if the flies are short.
- The object of the present invention is achieved by the following configurations.
- (1) A fly sewing machine configured to continuously stitch a plurality of flies each made of a piece of cloth to an elongated slide fastener chain, the fly sewing machine that includes a fly supply unit configured to supply the flies to a fly transfer passage; a fly transfer unit disposed downstream of the fly supply unit and configured to transfer and send the flies supplied by the fly supply unit to a downstream side thereof; a chain feed unit disposed downstream of the fly transfer unit and configured to feed the slide fastener chain onto the flies sent by the fly transfer unit; an auxiliary conveyance unit disposed downstream of the chain feed unit and configured to press the flies and the slide fastener chain which are overlapped by the chain feed unit from above or below and to send the flies and the slide fastener chain to a downstream side thereof; and a sewing machine part disposed downstream of the auxiliary conveyance unit and configured to stitch the flies to the slide fastener chain.
- (2) The fly sewing machine according to (1), in which the auxiliary conveyance unit includes at least one needle section configured to penetrate through at least one of the flies and the slide fastener chain.
- (3) The fly sewing machine according to (2), in which the auxiliary conveyance unit includes a support shaft provided perpendicular to the fly transfer passage and at least one roller rotatably supported by the support shaft, and the at least one needle section is a plurality of the needle sections which are provided on an outer circumferential surface of the at least one roller.
- (4) The fly sewing machine according to (3), in which the at least one roller is a pair of rollers rotatably provided on both ends of the support shaft and the auxiliary conveyance unit further includes the pair of the rollers and a rotary shaft provided along the fly transfer passage, the rotary shaft pivotably supporting the support shaft.
- (5) The fly sewing machine according to any one of (1) to (4), in which a power of the auxiliary conveyance unit is a sending force of the sewing machine part for sending the flies and the slide fastener chain which are overlapped to the downstream side thereof while stitching the flies and the slide fastener chain together.
- According to the fly sewing machine of the invention, the fly sewing machine includes a fly supply unit configured to supply the flies to a fly transfer passage; a fly transfer unit disposed downstream of the fly supply unit and configured to transfer and send the flies supplied by the fly supply unit to a downstream side thereof; a chain feed unit disposed downstream of the fly transfer unit and configured to feed the slide fastener chain onto the flies sent by the fly transfer unit; an auxiliary conveyance unit disposed downstream of the chain feed unit and configured to press the flies and the slide fastener chain which are overlapped by the chain feed unit from above or below and to send the flies and the slide fastener chain to a downstream side thereof; and a sewing machine part disposed downstream of the auxiliary conveyance unit and configured to stitch the flies to the slide fastener chain. Even if the length of each fly is shorter than the distance between the position at which the transfer speed-adjusting part sends the flies and the position of a pressing member of the sewing machine part, it is possible to stably send the flies and thus normally stitch the flies to the slide fastener.
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FIG. 1 is a partially-cutaway side view depicting one embodiment of a fly sewing machine according to the invention; -
FIG. 2 is a cross-sectional view taken in the direction of arrows of line A-A of the transfer speed-adjusting part shown inFIG. 1 ; -
FIG. 3 is an enlarged side view depicting the operation of adjusting the interval between the fourth drive roller and the fourth support roller between the transfer speed-adjusting part; -
FIG. 4 is an enlarged side view depicting the state before the following fly enters the interval between the fourth drive roller and the fourth support roller; -
FIG. 5 is an enlarged side view depicting the state in which the interval is formed between the preceding fly and the following fly; -
FIG. 6 is an enlarged side view depicting the state in which a following fly enters between the slide fastener chain and the support table; -
FIG. 7 is an enlarged side view of the surroundings of the auxiliary conveyance unit shown inFIG. 1 ; -
FIG. 8 is a cross-sectional view taken in the direction of line B-B of the auxiliary conveyance unit shown inFIG. 7 ; -
FIG. 9 is a partially cutaway side view depicting a first modified view of one embodiment of the fly sewing machine according to the invention; -
FIG. 10 is a partially cutaway side view depicting a second modified view of one embodiment of the fly sewing machine according to the invention; -
FIG. 11 is an enlarged side view depicting a first modified view of the auxiliary conveyance unit; and -
FIG. 12 is an enlarged side view depicting a second modified view of the auxiliary conveyance unit. - Hereinafter, an embodiment of a fly sewing machine according to the present invention will be described in detail with reference to the accompanying drawings.
- As shown in
FIG. 1 , the fly sewing machine of this embodiment includes astand 2 having afly transfer passage 3 provided on a top surface thereof such that flies F are transferred along thefly transfer passage 3; afly supply unit 10 which supplies the flies F to thefly transfer passage 3 of thestand 2; afly transfer unit 20 disposed downstream of thefly supply unit 10, thefly transfer unit 20 which transfers and sends the flies F supplied by thefly supply unit 10 to the downstream side thereof; achain feed unit 50 disposed downstream of thefly transfer unit 20, thechain feed unit 50 which feeds a slide fastener chain C onto the flies F sent by thefly transfer unit 20; anauxiliary conveyance unit 60 disposed downstream of thechain feed unit 50, theauxiliary conveyance unit 60 which presses the flies F and the slide fastener chain C which are overlapped in thechain feed unit 50 from above or below and sends the flies F and the slide fastener chain C to the downstream side thereof; and asewing machine part 70 disposed downstream of theauxiliary conveyance unit 60, thesewing machine part 70 which stitches the flies F to the slide fastener chain C. - The
fly supply unit 10 is formed of the upstream end of thefly transfer passage 3 which extends upstream from thefly transfer unit 20. In addition, in this embodiment, new flies F are adapted to be manually loaded in sequence onto thefly supply unit 10. In the meantime, it is also possible to drive a feed roller (not shown) in synchronization with the sewing speed and automatically load or introduce new flies F. - The
fly transfer unit 20 includes first tothird drive rollers 21 to 23 which are disposed at predetermined intervals along thefly transfer passage 3, first tothird support rollers 24 to 26 which are disposed above the first tothird drive rollers 21 to 23 such that a respective support roller faces a respective drive roller, first tothird springs 27 to 29 which elastically urge the first tothird support rollers 24 to 26 toward the first tothird drive rollers 21 to 23, upper andlower support frames third support rollers 24 to 26 toward the first tothird drive rollers 21 to 23 such that the support,rollers 24 to 26 can freely reciprocate, and a transfer speed-adjustingpart 40 which sends the flies F transferred by the first tothird drive rollers 21 to 23 to the downstream side at required timing. - The first to
third drive rollers 21 to 23 are rotatably supported on thestand 2 in the state in which the transfer surfaces thereof are slightly exposed out of thefly transfer passage 3 from above, and are driven by apower transmission belt 33 which is driven by asingle drive motor 32 so that thedrive rollers 21 to 23 rotate at the same speed. In addition, the first tothird springs 27 to 29 are compressive springs, and spring force thereof are set to a weak range, for example, from 0.05 kgf to 0.5 kgf. - The transfer speed-adjusting
part 40 includes afourth drive roller 41 which is rotatably supported on thestand 2, afourth support roller 42 which is disposed above thefourth drive roller 41 and is rotatably supported on the upper andlower support frames fourth springs 43 which elastically urge thefourth support roller 42 toward thefourth drive roller 41, and a roller interval-adjusting section 44 which adjusts the interval between thefourth drive roller 41 and thefourth support roller 42 by changing a descent limit position of thefourth roller 42. The driving of thefourth roller 41 is interlocked with the driving of thechain feed rollers chain feed unit 50, i.e. the sewing operation of thesewing machine part 70. - In addition, the speed of rotation of the
fourth drive roller 41 is set to be faster than the sewing speed in thesewing machine part 70. In the meantime, in this embodiment, the speed of rotation of thefourth drive roller 41 is set to be, for example, 10 to 15% faster than the sewing speed. In addition, the speed of rotation of the first tothird drive rollers 21 to 23 is set to be faster than the speed of rotation of thefourth drive roller 41. - In addition, in this embodiment, the outer circumference of the first to
third rollers 21 to 23 is knurled, and the outer circumference of the first tothird support rollers 24 to 26 is formed as a flat surface. In addition, the outer circumference of thefourth drive roller 41 and thefourth support roller 42 is knurled. - In the meantime, in this embodiment, the diameter of the
fourth support roller 42 is set to be smaller than the diameter of thefourth drive roller 41. For example, the diameter of thefourth drive roller 41 is set 30 mm, and the diameter of thefourth support roller 42 is set 20 mm. In addition, the diameter of thefourth support roller 42 is set ⅔ of the diameter of thefourth drive roller 41. In addition, thefourth springs 43 are compressive springs, and for example, the spring force thereof is set to the range from 2 kgf to 4 kgf, which is approximately 8 to 40 times the spring force of the first tothird springs 27 to 29. - As shown in
FIG. 2 , the roller interval-adjustingsection 44 includes asupport shaft 45 which rotatably supports thefourth support roller 42, ashaft support member 46 which supports left and right shaft ends of thesupport shaft 45 so as not to rotate and can slide up and down between the left and rightupper support frames 30, and anadjustment screw 47 having a dial which is screwed into a screw-hole 46 a which is formed in the central portion of theshaft support member 46 so as to penetrate in the vertical direction when seen from the plane of theshaft support member 46. The respectivefourth springs 43 are mounted between the left and right shaft ends of thesupport shaft 45 which is fixedly disposed in the left, and rightupper support frames 30 and theshaft support member 46. Turning theadjustment screw 47 having the dial in the screwing direction decreases the interval between thefourth drive roller 41 and the fourth support roller 42 (see the wavy line inFIG. 3 ). Turning theadjustment screw 47 having the dial in the direction opposite to the screwing direction increases the interval between thefourth drive roller 41 and the fourth support roller 42 (see the solid line inFIG. 3 ). - The
sewing machine part 70 has a support table 71 on the upper surface of which thefly transfer passage 3 along which the flies F are transferred is provided, apressing section 72, a pair ofsewing needles 73 which stitches the flies F to the slide fastener chain C, and a transfer member which is not shown. - The
chain feed unit 50 has a chainfeed roller part 51 which draws the slide fastener chain C from a chain reservoir disposed above thesewing machine part 70, sends the chain downwards, is driven by a pair of front and rear independent power transmission motors which are not shown, and is composed of adrive roller 52 and afollower roller 53. Thechain feed unit 50 also includes achain guide roller 54 disposed below the chainfeed roller part 51. In addition, the slide fastener chain C which is sent downwards by the chainfeed roller part 51 is redirected by thechain guide roller 54, and is fed onto flies F sent by the transfer speed-adjustingpart 40. - In addition, in the
fourth drive roller 41 of the transfer speed-adjustingpart 40 and thedrive roller 52 of the chainfeed roller part 51, respectivepower transmission pulleys power transmission belt 55. Therefore, thefourth drive roller 41 is driven to rotate in synchronization with thedrive roller 52. - In addition, in this embodiment, as shown in
FIG. 1 , aphotoelectric detector 80 is provided below thefly transfer passage 3 between thethird drive roller 23 and thefourth drive roller 41. Thephotoelectric detector 80 is configured such that thesewing machine part 70 and thefourth drive roller 41 start to operate when light is blocked by the flies F which pass through the detecting area of thephotoelectric detector 80 but thesewing machine part 70 and thefourth drive roller 41 stop operating when an interval is formed between a preceding fly F and a following fly F. In the meantime, the first tothird drive rollers 21 to 23 continue operating even when the transfer speed-adjustingpart 40 is stopped. That is, when thephotoelectric detector 80 detects the rear end of the preceding fly F has passed by thephotoelectric detector 80 in the state in which the interval is formed between the preceding fly F and the following fly F, the operation of sewing and transferring the preceding fly F1 stops. While the operation of sewing and transferring the preceding fly F1 is stopped, the following fly F2 which is continuously transferred. When the leading end of the following fly F2 passes by and covers thephotoelectric detector 80 from light, the operation of sewing and transferring the preceding fly F is resumed. - Here, since the speed of transferring the following fly F2 is faster than the speed of transferring the preceding fly F1, the following fly F2 catches up the preceding fly F1 while the preceding fly F1 passes through transfer speed-adjusting
part 40. In this state, the leading end of the following fly F2 is in contact with the rear end of the preceding fly F1. In this contact state, the leading end of the following fly F2 tends to climb over the rear end of the preceding fly F1 because the speed of transferring the following fly F2 surpasses the speed of transferring the preceding fly F1. However, because the spring force of the first tothird springs 27 to 29 which urge the first tothird support rollers 24 to 26 of thefly transfer unit 20 is small and the outer circumference of the first tothird support rollers 24 to 26 is flat, the following fly F2 slips between the first tothird drive rollers 21 to 23 and the first tothird support rollers 24 to 26 and thus does not climb over the preceding fly F1. In addition, even though the following fly F2 slightly climbed over the preceding fly F1, the following fly F2 collides against the outer circumference of thefourth support roller 42 of the transfer speed-adjustingpart 40, thereby failing to move forward further. This consequently ensures that the preceding fly F1 passes first in the transfer speed-adjustingpart 40. - In this way, while the preceding fly F1 continues being stitched to the slide fastener chain C by the
sewing machine part 70 in the state in which the leading end of the following fly F2 is in contact with the rear end of the preceding fly F1, the leading end of the following fly F2 comes with contact with the respective outer circumference of thefourth drive roller 41 and thefourth support roller 42 toward the interval, between therollers part 40, as shown inFIG. 4 . Here, since the size of the interval d1 between thefourth drive roller 41 and thefourth support roller 42 is smaller than the cloth thickness of the following fly F2, the following fly F2 cannot instantaneously enter the interval between therespective rollers part 40 at a higher speed than the sewing speed by thesewing machine part 70. As a result, as shown inFIG. 5 , an interval d2 is formed between the preceding fly F1 and the following fly F2. In addition, this interval d2 depends on the cloth thickness and ductility of the flies F and the size of the interval d1 between thefourth drive roller 41 and thefourth support roller 42, but is not uniformly determined. - In addition, the flies F which pass through the
fourth drive roller 41 and thefourth support roller 42 of the transfer speed-adjustingpart 40 are reliably transferred, since the outer circumference of thefourth drive roller 41 and thefourth support roller 42 is knurled, and the spring force of thefourth spring 43 is set to be greater than that of the first tothird springs 27 to 29. - However, when the flies F simply enter the interval between the
fourth drive roller 41 and thefourth support roller 42, the transfer speed-adjusting part. 40 is transferred in the state in which the following fly F2 is in contact with the preceding fly F1, the speed of transferring the transfer speed-adjustingpart 40 is faster than the sewing speed, and holding force between thefourth drive roller 41 and thefourth support roller 42 in the transfer speed-adjustingpart 40 is extremely great. Consequently, there is possibility that the flies F would be sent to thesewing machine part 70 in the state in which the leading end of the following fly F2 is placed on the rear end of the preceding fly F1. In the meantime, when, the interval between thefourth drive roller 41 and thefourth support roller 42 is too great, it takes too much time for the flies F to enter the interval between thefourth drive roller 41 and thefourth support roller 42, so that the interval d2 between the preceding fly F1 and the following fly F2 becomes excessively great. Consequently, it is impossible to produce an intended interval. - The interval d2 between the preceding fly F1 and the following fly F2 is not uniform owing to the preferences of sewing manufacturers. In an example, some manufacturers prefer the state in which the preceding fly F1 and the following fly F2 are in contact, whereas other manufacturers prefer the state in which a certain interval is set between the preceding fly F1 and the following fly F2. Therefore, there are strong desires at sewing sites for the ease of the operation of adjusting the interval. In the present invention, it is possible to simply adjust the interval, between the fourth, drive
roller 41 and thefourth support roller 42 by simply rotating theadjustment screw 47 having a dial of the transfer speed-adjustingpart 40 as described above. - In addition, when the following fly F2 enters the interval between the
fourth drive roller 41 and thefourth support roller 42, the following fly F2 catches up the preceding fly F1 which is being sewn since the driving speed of thefourth drive roller 41 surpasses the driving speed of thesewing machine part 70. Consequently, as shown inFIG. 6 , the following fly F2 is introduced between the slide fastener chain C, the transfer of which is guided by thechain guide roller 54, and the support table 71. Here, it is possible to adjust the final interval between the preceding fly F1 and the following fly F2 at any value by suitably selecting the speed ratio between the sewing speed of thesewing machine part 70 and the driving speed of thefourth drive roller 41. - As shown in
FIG. 7 andFIG. 8 , theauxiliary conveyance unit 60 includes asupport section 61, abase member 62, asupport shaft 63, arotary shaft 64 and a pair ofrollers 65. Thesupport section 61 is disposed on the support table 71. Thebase member 62 is attached to thesupport section 61, and is disposed above the flies F and the slide fastener chain C, which are overlapped each other in thechain feed unit 50, with a predetermined interval. Thesupport shaft 63 is fitted into arecess 62 a which is formed in the width direction of thebase member 62. Therotary shaft 64 extends through a longitudinal central section of thesupport shaft 63, which is disposed in therecess 62 a, along thefly transfer passage 3, and pivotably supports thesupport shaft 63. The pair ofrollers 65 is rotatably supported on opposite ends of thesupport shafts 63. Consequently, thesupport shaft 63 is provided perpendicular to thefly transfer passage 3, and therotary shaft 64 is provided along thefly transfer passage 3. In addition, thesupport shaft 63 is supported such, that thesupport shaft 63 can pivot about therotary shaft 64. In the meantime, the slide fastener chain C includes a pair of left and right fastener tapes C1 and C2 and a plurality of fastener elements C3 and C4 which are attached to the fastener tapes C1 and C2 along opposing tape side edges of the fastener tapes C1 and C2. - The pair of
rollers 65 is disposed such that arespective roller 65 presses, from above, a respective one of the pair of left and right fastener tapes C1 and C2 of the slide fastener chain C that are overlapped on the flies F in thechain feed unit 50. A plurality of needle sections 66 (12 needle sections in this embodiment) which penetrates through the flies F and the fastener tapes C1 and C2 of the slide fastener chain C is formed on the respective outer circumference of therollers 65. In addition, theneedle sections 66 are disposed on the outer circumference of theroller 65, at substantially regular intervals in the circumferential direction, and radially extend outward. In the meantime, although both the pair of left and right fastener tapes C1 and C2 are pressed by the pair ofrollers 65 in this embodiment, this is not intended to be limiting. Rather, it is possible to provide only oneroller 65 such that the roller presses only one of the pair of left and right fastener tapes C1 and C2. - The
base member 62 has an element-receivingrecess 62 b in the undersurface thereof. The element-receivingrecess 62 b receives the engaged fastener elements C3 and C4 of the pair of left and right fastener tapes C1 and C2, and is formed along thefly transfer passage 3. In addition, the support table 71 hasslits needle sections rollers 65 extend. - In addition, the pair of
rollers 65 of theauxiliary conveyance unit 60 rotates as the flies F and the slide fastener chain C to which theneedle sections 66 thereof are fitted are sewn by thesewing machine part 70 and are then sent downstream. That is, a power of the pair ofrollers 65 is a sending force of thesewing machine part 70 for sending the flies F and the slide fastener chain C which are overlapped to the downstream side thereof while stitching the flies F and the slide fastener chain C together. Owing to this, the pair ofrollers 65 rotates in synchronization with the sewing speed of thesewing machine part 70. In addition, since the pair ofrollers 65 rotates in the state in which theneedle sections 66 are fitted into the flies F and the slide fastener chain C, the flies F and the slide fastener chain C are sent to thesewing machine part 70 via the rotation. In addition, theneedle sections 66 are adapted to be sequentially released after being fitted into the flies F and the slide fastener chain C by the rotation of therollers 65. - As described above, the fly sewing machine 1 of this embodiment includes the
fly supply unit 10 which supplies the flies F to thefly transfer passage 3 of thestand 2, thefly transfer unit 20 which transfers and sends the flies F supplied by thefly supply unit 10 to the downstream side thereof thechain feed unit 50 which feeds a slide fastener chain C onto the flies F sent by thefly transfer unit 20, theauxiliary conveyance unit 60 which presses the flies F and the slide fastener chain C which are overlapped in thechain feed unit 50 from above or below and sends the flies F and the slide fastener chain C to the downstream side thereof, and thesewing machine part 70 which stitches the flies F to the slide fastener chain C. Accordingly, even though the length of the flies F is shorter than the distance between the position at which thefly transfer unit 20 sends the flies F and the position of thepressing section 72 of thesewing machine part 70, it is possible to stably send the flies F, thereby reliably stitching the flies F to the slide fastener chain C. - In addition, according to the fly sewing machine 1 of this embodiment, the plurality of
needle sections 66 which extend through the flies F and the slide fastener chain C is formed in the outer circumference of the pair ofrollers 65. Accordingly, it is possible to reliably send the flies F and the slide fastener chain C to thesewing machine part 70 in the downstream side so that the positions thereof are not misaligned. - In addition, according to the fly sewing machine 1 of this embodiment, the
support shaft 63 which rotatably supports the pair ofrollers 65 is pivotably supported by therotary shaft 64. Even though the surface of the flies F and the slide fastener chain C which are sent to the pair ofrollers 65 is uneven, the uneven surface is absorbed by pivoting of the pair ofrollers 65. Accordingly, it is possible to reliably send the flies F and the slide fastener chain C to thesewing machine part 70 in the downstream side. - In addition, according to the fly sewing machine 1 of this embodiment, the power of the pair of
rollers 65 of theauxiliary conveyance unit 60 is the sending force of thesewing machine part 70 which sends the flies F and the slide fastener chain C which are overlapped each other to the downstream side while stitching the flies F and the slide fastener chain C together. Accordingly, it is not required to separately provide a power source of the pair ofrollers 65, thereby making it is possible to reduce the manufacturing cost of the fly sewing machine 1. - In addition, as a first modified embodiment of this embodiment, as shown in
FIG. 9 , the transfer speed-adjustingpart 40 may be omitted. In this case, thefly transfer unit 20 includes first tofourth drive rollers 21 to 23 and 91 which are disposed along thefly transfer passage 3 at predetermined intervals, first tofourth support rollers 24 to 26 and 92 which are disposed above thefourth drive rollers 21 to 23 and 91 such that a respective support roller faces a respective drive roller, first tofourth springs 27 to 29 and 93 each of which elastically urges a respective one of the first tofourth support rollers 24 to 26 and 92 toward a respective one of thedrive rollers 21 to 23 and 91, and upper and lower support frames 30 and 31 which support the first tofourth support rollers 24 to 26 and 92 toward the first tofourth drive rollers 21 to 23 and 91 such that the drive rollers can freely reciprocate. The first tofourth drive rollers 21 to 23 and 91 are driven by thepower transmission belt 33 which is driven by thesingle drive motor 32 so that therollers 21 to 23 and 91 rotate at the same speed. - In addition, as a second modified embodiment of this embodiment, as shown in
FIG. 10 , thefly transfer unit 20 may be substituted by afly transfer unit 100 which transfers flies F by blowing air. Thefly transfer unit 100 includes an upper air-blowingsection 101, a lower air-blowingsection 102 which blows air onto the undersurface of the flies F, and aroller device 103 which sends the flies F transferred by the air-blowingsections - The upper air-blowing
section 101 includes asupport frame 104 which is disposed above the flies F with a predetermined interval, three blow-holes 105 which are formed in thesupport frame 104 with predetermined intervals in the direction in which the flies are transferred, andair feed nozzles 106 each of which is connected to a respective one of the three blow holes 105. In addition, the blow holes 105 are inclined downward toward the downstream direction. - The lower air-blowing
section 102 has threeblow holes 107 which are formed in thestand 2 with predetermined intervals in the direction in which the flies are transferred andair feed nozzles 108 each of which is connected to a respective one of the three blow holes 107. In addition, the blow holes 107 are inclined upward toward the downstream direction. - The
roller device 103 includes adrive roller 103 a which is driven by a power transmission motor which is not shown and afollower roller 103 b. In addition, in thefly transfer unit 100 which is configured as above, the flies F are caused to slightly float on air that is blown through the blow holes 105 and blow holes 107. In this state, the flies F are transferred to theroller device 103, and are then sent downstream by theroller device 103. - In addition, as the first modified embodiment of the
auxiliary conveyance unit 60, theneedle sections 66 of theroller 65 penetrate through both the flies F and the slide fastener chain C in the above-described configuration. However, as shown inFIG. 11 , the length of theneedle sections 66 may be shortened such that the needle sections penetrate through only the slide fastener chain C but merely press the flies F. - In addition, as the second modified embodiment of the
auxiliary conveyance unit 60, as shown inFIG. 12 , theroller 65 of the above-described embodiment may be substituted by a pressingmember 67 which has a rectangular motion trace. The pressingmember 67 is a rectangular body, and has at least one needle section 68 (two needle sections in this modified embodiment) on the undersurface thereof. Theneedle sections 68 penetrate through the slide fastener chain C and penetrate through or press the flies F. In the meantime, the rectangular motion of the pressingmember 67 uses a pneumatic or hydraulic cylinder. - In the meantime, the present invention is not limited to the above-described embodiments but can be suitably modified without departing from the scope of the invention.
- In an example, the
roller 65 may be disposed below thefly transfer passage 3 such that theneedle sections 65 penetrate through the flies F and press the fastener chain C or penetrate through both the flies F and the fastener chain C. - 1 Fly Sewing Machine
- C Slide Fastener Chain
- C1 Fastener Tape
- C2 Fastener Tape
- F Fly
- 2 Stand
- 3 Fly Transfer Passage
- 10 Fly Supply Unit
- 20 Fly Transfer Unit
- 50 Chain Feed Unit
- 60 Auxiliary Conveyance Unit
- 63 Support Shaft
- 64 Rotary Shaft
- 65 Roller
- 66 Needle Section
- 70 Sewing Machine Part
Claims (5)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2010/060240 WO2011158354A1 (en) | 2010-06-16 | 2010-06-16 | Fly sewing machine |
Publications (2)
Publication Number | Publication Date |
---|---|
US20130092067A1 true US20130092067A1 (en) | 2013-04-18 |
US9157175B2 US9157175B2 (en) | 2015-10-13 |
Family
ID=45347775
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/704,278 Active 2031-05-17 US9157175B2 (en) | 2010-06-16 | 2010-06-16 | Fly sewing machine |
Country Status (5)
Country | Link |
---|---|
US (1) | US9157175B2 (en) |
CN (1) | CN103025944B (en) |
MX (1) | MX2012014599A (en) |
TW (1) | TWI396787B (en) |
WO (1) | WO2011158354A1 (en) |
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US9328441B2 (en) | 2014-06-17 | 2016-05-03 | Ykk Corporation | Support guide for making deck seams and French seams with slide fastener |
US11066768B2 (en) * | 2017-05-22 | 2021-07-20 | Ykk Corporation | Fly edgestitching apparatus |
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CN103938374B (en) * | 2014-03-31 | 2016-08-17 | 吴江明佳织造有限公司 | Alignment means for sewing of weaving cotton cloth |
CN105063899B (en) * | 2015-08-04 | 2018-01-30 | 江苏天淼软件开发有限公司 | A kind of cloth-rolling device on braid automatic sewing machine |
JP6653600B2 (en) * | 2016-03-10 | 2020-02-26 | 蛇の目ミシン工業株式会社 | sewing machine |
CN106930009B (en) * | 2017-04-24 | 2022-10-21 | 福恩达机器人(昆山)有限公司 | Automatic zipper sewing device, sewing machine and sewing method |
JP6423568B1 (en) * | 2018-06-26 | 2018-11-14 | 双日株式会社 | Sewing device |
CN111836923B (en) * | 2018-08-27 | 2021-10-01 | Ykk株式会社 | Fabric screening sewing machine |
CN112912551B (en) * | 2018-10-24 | 2022-09-13 | Ykk株式会社 | Front fly piece conveying device of front fly piece sewing machine |
JP7043016B2 (en) * | 2019-04-23 | 2022-03-29 | ヤマトミシン製造株式会社 | Clothing seam expansion device |
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US11066768B2 (en) * | 2017-05-22 | 2021-07-20 | Ykk Corporation | Fly edgestitching apparatus |
Also Published As
Publication number | Publication date |
---|---|
WO2011158354A1 (en) | 2011-12-22 |
TWI396787B (en) | 2013-05-21 |
US9157175B2 (en) | 2015-10-13 |
CN103025944A (en) | 2013-04-03 |
CN103025944B (en) | 2014-05-14 |
MX2012014599A (en) | 2013-02-21 |
TW201200662A (en) | 2012-01-01 |
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